baber/WOPTO huggingface dataset:
Patent GB-1403208-A (GB)
Title: Process for preparing supported olefin polymerisation catalysts
IPC: C08F4/68
Filed: 1972-12-15
Abstract: 1403208 Preparation of supported olefin polymerization catalysts SOC ITALIANA RESINE SIR SpA 15 Dec 1972 [27 Dec 1971] 58114/72 'Heading C3P Olefins are polymerized in the presence of a catalyst comprising (a) an organometallic compound and (b) a product of interaction between a transition metal halide and a granular support which has been obtained by (i) activating, at 350 C. to 900 C. for 2 to 25 hours, a granular silica, alumina or alumino-silicate support; (ii) depositing metallic aluminium on the activated support, and (iii) reacting the resulting product with the transition metal halide at 100 to 350 C. for 10 to 30 hours. The deposition step (ii) may be effected by mixing the appropriate powders, directly or via hydrocarbon suspensions from which the hydrocarbon is evaporated after mixing, or by impregnating the support material with an organoaluminium compound or aluminium hydride, followed by decomposition of the aluminium compound to the metal. The process may be carried out in the presence of hydrogen. In examples, polyethylene, polypropylene, ethylene-propylene and ethylene-butene 1 copolymers are obtained using as catalysts (a) diethyl aluminium chloride, and (b) reaction products of titanium tetrachloride with alumina having metallic aluminium deposited thereon (by direct mixing with the metal powder or by aluminium hydride deposition followed by decomposition).
Patent GB-1236810-A (GB)
Title: Sealing rings for anti-friction bearings
IPC: F16C33/78
Filed: 1968-12-10
Abstract: 1,236,810. Seals; bearings. ZILLER & CO. 10 Dec., 1968 [14 Dec., 1967], No. 58522/68. Headings F2A and F2B. A sealing ring 6a, Fig. 1, is adapted to bear resiliently against the inner or outer race of a ball or roller bearing and is provided with a conical surface 9a for clamping and centring purposes. Such a ring is made of metal. The conical surface 9a may seat on the shaft 5 or on one of the bearing races and may be inclined in the opposite direction to that shown. A pair of sealing rings 11a, 12a, Fig. 2, may be combined and the space between them filled with grease to increase the sealing action. The sealing portion 7a of the ring may be of harder material than the surface portion 9a which may be of cylindrically-shaped soft material so that when pushed on to a conical seating plastic deformation of the clamping surface takes place.
Patent GB-1369252-A (GB)
Title: Oxabicyclooctane derivatives
Inventor: KELLY R C
IPC: C07D317/14
Filed: 1971-11-01
Abstract: 1369252 Cyclopenta[b]furan derivatives VPJOHN CO 1 Nov 1971 [27 Nov 1970] 58573/73 Divided out of 1369251 Heading C2C The invention comprises optically active cyclopenta[b]furan derivatives of the formulae or the mirror image thereof, or racemic compounds thereof wherein W is (CH 2 ) 4 CH 3 , pentcis-2-enyl or pent-2-ynyl, Z is pent-cis-2-enyl or pent-2-ynyl, THP is 2-tetrahydropyranyl and # indicates attachment of radical to the side chain in alpha or beta configuation, and an optically active compound represented by the mirror image of the Formula XI  and their preparation, and the preparation of the optically active compound of Formula XI above or racemic compound thereof. Compounds of Formula XI and the other lactone diols of the above formula are prepared by mixing optically active compounds of the formula  or the mirror image thereof, and racemic compounds thereof, wherein R 9  is C 1-5  alkyl and # indicates attachment of the radical to the cyclopropane ring in oxo or endo configuration and to side chain in alpha or beta, with water at temperatures in the range of 0 to 60 C.; or by reacting optically active tricyclic lactones of the Formula L  or the mirror image thereof, or racemic compounds thereof with formic acid at 25 C. and hydrolysing the resulting diformates (see formula above) with weak bases in lower alkanols at 10 to 50 C., or by hydrolysing optically active epoxides of the Formula XXXVIII with solutions of dilute formic acid in inert miscible solvents, contacting the resulting mixtures with formic acid at 25 C. and hydrolysing the diformates thus obtained. The diformates of the above formula are also obtained by the formolysis of the epoxides of the Formula XXXVIII above. The lactol bis-(tetrahydropyranyl) ethers are obtained by reducing the corresponding lactones, which are made by etherifying the appropriate lactone diol. Compounds in which Z or W is pent-cis-2-enyl are obtained by hydrogenating the corresponding compound in which Z or W is pent-2-ynyl.
Patent GB-1376389-A (GB)
Title: Water-soluble reactive monoazo dyestuffs
IPC: C09B62/51
Filed: 1972-12-21
Abstract: 1376389 Water-soluble reactive mono-azo dyestuffs FARBWERKE HOECHST AG 21 Dec 1972 [21 Dec 1971] 59211/72 Heading C4P Novel dyestuffs of the formula wherein R is H, C 1-4  alkyl, cycloalkyl or aryl; Q is H or OH; Z is -(CH 2 ) 2 OH, -(CH 2 ) 2 OSO 3 H or -CH=CH 2 ; and n is 1 or 2, and their salts, are prepared by conventional diazotization and coupling. Products wherein Z is -(CH 2 ) 2 OH may be converted into the corresponding sulphuric esters and these may be converted into the vinyl compounds by the action of strong alkalis. The new dyestuffs are useful for the dyeing and printing of natural and regenerated cellulose fibres and natural and synthetic nitrogen-containing fibres, especially wool.
Patent GB-1419079-A (GB)
Title: Electromechanical safety closure for an omnibus or carriage door
IPC: B60J5/06
Filed: 1972-12-21
Abstract: 1419079 Safety closure for doors R F WILDT 21 Dec 1972 [22 Dec 1971] 59227/72 Heading E2M An electro-mechanical closure for an omnibus or carriage door is provided at its closing edge with an elastic hollow profile 1 constituting a finger protection in which profile a cable 2, stretched by means of legs 6, is attached at one end to an electrical reversing rapid response break switch 4 through a rocking lever 3 supported on an elastic rubber moulding 5 fixed to the body of the door. The other end of the cable 2 is attached to a lever 7 which is connected in a flexible manner with a pivoted member 9 carried on a rubber moulding 8 in conjunction with two curved tracks 10, 12 with an associated roller 11 therebetween. This arrangement ensures that the safety closure also responds to an oblique impact against the lower end of the door.
Patent GB-1291074-A (GB)
Title: Colour electrophotography
Inventor: HERCOCK ROBERT JAMES
IPC: G03G5/12
Filed: 1969-12-08
Abstract: 1291074 Electrophotographic material ILFORD Ltd 1 Dec 1970 [8 Dec 1969] S9824/69 Heading H1K In an electrophotographic element for colour reproduction comprising sets of areas which are sensitive to only selected regions of the visible spectrum, the sets of areas are made electrophotographically by exposing a charged photoconductive layer to a pattern of light and developing the pattern with a toner which sensitizes one set of areas corresponding to the pattern to a selected region of the spectrum, this technique being repeated at least once to produce another set of areas sensitive to another region of the spectrum. Each time the technique is repeated the layer is exposed overall to light to which all the areas have been previously sensitized to destroy the charge on the layer in the sensitized areas. This overall exposure may be before, simultaneously with or after the exposure to the pattern of light. The element may be sensitized to three or four regions of the spectrum and the various sensitized sets of areas are equal in area. Screens having opaque lines or lines which are opaque to a region of the spectrum may be used to produce the light patterns and the areas may be arranged as a series of blocks or intersecting lines. The toner is applied as charged particles in the form of a powder an aerosol spray or a liquid and is preferably dye-sensitized zinc oxide particles in an insulating carrier liquid together with an alkyd resin and ferric stearate.
Patent GB-1421778-A (GB)
Title: Wire processing machine
IPC: B21C43/02
Filed: 1972-12-29
Abstract: 1421778 Processing wire, bar and tube; drawing; rotary tool heads BRITISH STEEL CORP 28 Dec 1973 [29 Dec 1972] 59983/72 Headings B3A B3P and B3T A machine for processing wire, bar or tube comprises a stationary drawing die 10 downstream of a lubricating soap box, a rotary turning head 4 arranged downstream of the die 10 for surface turning the drawn workpiece 1 and a lubricating soap box 7 with a guide bush 8 downstream of the turning head 4. A non-ferrous or stainless, carbon or alloy steel wire 1 is drawn at 150 feet/rain. by a coiler (not shown) successively through a lubricating soap box, the drawing die 10, a guide bush 12, the turning head 4 which is belt driven, has cutting tools 16, free running guide rolls 6 and a soap box 7 and guide bush 8 for lubricating and polishing the wire 1. The turning head 4 is mounted for rotation, e.g. 5000 r.p.m., on roller bearings 14 and carries a faceplate 15 on which three cutting tools 16 are mounted. The bearings 14 are lubricated by oil or an oil/air mist supplied under pressure through a conduit 20.
Patent GB-1380710-A (GB)
Title: Rotary wing aircraft
IPC: B64C27/00
Filed: 1971-12-23
Abstract: 1380710 Mounting helicopter rotors KAWASAKI JUKOGYO KK 23 Dec 1971 [29 Dec 1970] 60095/71 Heading B7W [Also in Division F2] A rotary wing aircraft has a lift rotor mounted on a fuselage through a plurality of elastic mounts 7 disposed so that there is a pair of the mounts on each side of a longitudinal vertical plane and a pair of the mounts on each side of a transverse vertical plane, the axis of highest stiffness 16 of at least one of the mounts on one side of one plane intersecting in that plane below the mount with the similar axis of one mount on the opposite side of the plane. There may be four mounts 7 with their axes either intersecting at a point (10), Fig. 6 (not shown), or with the axes of pairs of mounts intersecting on lines 10a, 10b, Fig. 7, or the axes of one pair of opposite mounts may intersect while those of another are substantially parallel, Fig. 10 (not shown). In this latter case fuselage vibrations are reduced in one direction only, and rigid transverse links (26) are provided to take up reaction torque. The amounts may be rubber plates 7<SP>1</SP> between arms 11, 15 on the fuselage 14 and transmission housing 5. The mounts may be arcuate or V-shaped, Fig. 14, to produce an axis of highest stiffness (c).
Patent GB-1342580-A (GB)
Title: Oxygen bleaching process for lignocellulosic materials
IPC: D21C9/10
Filed: 1970-12-18
Abstract: 1342580 Oxygen bleaching process CANADIAN INDUSTRIES Ltd 18 Dec 1970 [19 Dec 1969] 60270/70 Heading D1P A process for bleaching lignocellulosic material comprises (i) treating the material in aqueous alkaline medium with oxygen gas or an oxygen-containing gas under supraatmospheric pressure, (ii) treating the oxygen-treated material in aqueous suspension with chlorine or chlorine dioxide or a mixture of chlorine and chlorine dioxide wherein the concentration of available chlorine is 0.11 to 0.30 x Kappa Number of the oxygen-treated material; and (iii) treating the chlorine and/or chlorine dioxide treated material in aqueous alkaline medium with oxygen gas or an oxygen containing gas under supraatmospheric pressure and optionally (iv) treating the oxygen-treated material of (iii) in aqueous suspension with chlorine dioxide. The treatment of the lignocellulosic material with oxygen may be carried out on pulped material in aqueous suspension at a consistency of 3 to 30% by weight. The pulp may be made alkaline by treatment with 1 to 5% by weight of the pulp of an alkali. Addition of a viscosity preserver such as magnesium carbonate, magnesium oxide or magnesium hydroxide can also be made at this stage. The alkaline pulp is then exposed in a pressure vessel to oxygen or an oxygen containing gas at a partial pressure of oxygen in the range 30 to 200 p.s.i. for 10 to 45 mins at a temperature of 100 to 200‹C. The pulp is preferably stirred continuously. After completion of the oxygen treatment the pulp is normally washed with water. The treatment with chlorine and/or chlorine dioxide is preferably carried out with the pulp in aqueous suspension at a consistency of 3 to 30% at 10 to 40‹C. The concentration of the chlorine and/or chlorine dioxide is such that the available chlorine is 0.11 to 0.30 multiplied by the Kappa Number of the oxygentreated material. The weight ratio of chlorine to chlorine dioxide in the chlorine/chlorine dioxide mixture can be 100:0 to 0:100, but is preferably 95:5 to 80:20. The treatment takes 10 to 60 mins and then the pulp is washed with water. In the second alkaline oxygen treatment, the pulp at 3 to 30% consistency is suitably treated with 1 to 3% alkali material and then subjected to treatment with oxygen or an oxygen-containing gas under a pressure of 30 to 200 p.s.i. preferably in the presence of the viscosity preserver. The treatment is for 10 to 30 minutes at 100 to 200‹C, preferably with stirring. The pulp is then washed with water. The pulp may then be treated with 0.1 to 1.0% chlorine dioxide at 60 to 90‹C, for 1 to 4 hours. The pulp is then washed with water. The expression "alkaline material" is defined as a compound selected from alkali metal hydroxides and carbonates and hydroxides of calcium, strontium and barium.
Patent GB-1287766-A (GB)
Title: Filter apparatus
IPC: B01D46/18
Filed: 1969-12-16
Abstract: 1287766 Mounting for air filter take-up roll NORTH AMERICAN ROCKWELL CORP 16 Dec 1969 [23 Jan 1969] 61150/69 Heading BIT The take-up roll support structure for a non- endless band air filter comprises a pair of spaced bearings 82, Fig. 3, a take-up roll drive shaft 44, Fig. 2, extending through the roll 34, metal discs 38 and 40 which form a drive connection between roll 34 and shaft 44; a pair of bearing members 46, 48 which axially interfit with shaft 44 in rotatively fixed relation, and flange members 60 and 62 which preclude relative axial movement between members 46, 48 and bearings 82.
Patent GB-1260979-A (GB)
Title: Ball-bearing
IPC: F16C29/06
Filed: 1970-12-30
Abstract: 1,260,979. Bearings. DEUTSCHE STAR KUGELHALTER G.m.b.H. 30 Dec., 1970 [27 Jan., 1970], No. 61905/70. Heading F2A. A rectilinear motion bearing with recirculating balls comprises a plastics ring 1 in which the guide grooves 3, 4 are formed, each inner loadbearing groove 3 being covered towards the exterior of the ring by a steel track plate 10 provided with a groove 12. The plates 10 are retained by rings which encompass portions of reduced diameter at each end. The grooves 12 are impressed into the plates 10, and may also be ground in the load-bearing region, in which case the rectilinear parts of the grooves are extended beyond the ramp parts to the ends of the plates.
Patent GB-737432-A (GB)
Abstract: 737,432. Soil stabilization. KATLEIN, F. W. July 31, 1953 [Aug. 6, 1952], No. 21341/53. Class 68(1). An earth fill is simultaneously formed, supplied with an optimum amount of water, and compacted by apparatus comprising a trackpropelled vehicle equipped with means, e.g. a scraper blade, to form the fill and frequencyadjustable, vibratory means, which will vibrate the apparatus at a frequency substantially equal to the natural frequency of the earth fill being formed. One or more vibrators 7 are either secured on, and above or below, each track-supporting frame 1, or are incorporated in the track rollers 5. The vibrators are driven either directly, or indirectly, from the engine of the vehicle. A preferred form of vibrator is electrically-actuated, the power being supplied from an electrical generator coupled to said engine.
Patent GB-749295-A (GB)
Abstract: 749,295. Checking receipts etc.; autographic registers. STANDARD REGISTER CO. March 18, 1954, No. 7964/54. Classes 106 (1) and 106 (3). [Also in Groups XV and XVI] An autographic register is combined with a ticket printing and issuing machine, each having separate manual controls but being interconnected through automatic controls so that a ticket must be issued corresponding to a register form before a further form may be presented for filling. The register 25 is of a known type but modified by the addition of stops 45, 46, which prevent rotation of the crank 44 until a ticket has been issued, and by incorporation of a switch operated on rotation of the crank to render means for changing printing indicia in the ticket machine 26 effective. The stop 46 is prevented from being pushed clear of the crank by a pivoted plate 54 (Fig. 3) held in blocking position until released by withdrawal of a latch 59 by a solenoid (not shown). The solenoid is actuated upon pressure being applied to a plate 107 (Figs. 1, 5) to cause the machine 26 to issue a ticket. The machine 26 is driven by an electric motor 71 and when the plate 107 is pressed inwardly, mechanism (not shown) operated through a link 106 establishes a driving connection between the motor and a cam shaft 76. This connection is broken only when the plate is released and a number of tickets may thus be issued. The camshaft operates linkage to index a platen 128, having pins 157 engaging a web of ticket material 118, and to cause horizontal pivoting of a knife 164 (Figs. 5, 6, 11) which cuts off tickets from the web and engages in slots 181 in the platen to locate it while a ticket is printed. Printing discs 189, 189A are carried on a pivoted yoke 183, raised by cams 233 on the shaft 76 and allowed to fall to print. Discs 189 form a simple " tens-carry " counter while discs 189A may be adjusted by cogwheels 195 through coaxial knobs and shafts 192, 193 (Figs. 1, 6). Discs 189 are adjusted by a cam-operated link 210 swinging through an arm 208, a yoke 205A, such adjustment only occurring when a detent 213 engages a pin 214 on the link 210. This engagement occurs when a solenoid 221 is activated by closing of a switch upon operation of the crank 44, otherwise the machine issues tickets bearing identical serial numbers. Rotation of the crank 44 depresses the stop 45 to reset the latch 59.
Patent GB-2000862-A (GB)
Title: Detector pulse height maintaining circuit for x-ray fluorescence spectrometers
IPC: G01N23/223
Filed: 1978-06-19
Abstract: A circuit for keeping the average detector pulse height constant for X-ray fluorescence spectrometers consisting of an adjustable linear amplifier (2), a channel window (4) with a pulse channel of programmable width and height, a decision unit (8), which may be a micro-computer or a peak detector, connected in digital or analogue manner to the output of a pulse rate meter (5). The decision unit has two outputs, the first of which (9) is connected to a control input (3) of the linear amplifier, and a control signal (Uc) for spectrometric evaluation of the detector pulses at a maximum output voltage of the pulse rate meter is fed to the second output (10). <IMAGE>
Patent GB-2020218-A (GB)
Title: Compacting Pulverulent or Pasty Material During Delivery into Means providing a Rigid Sheath
IPC: C06B21/00
Filed: 1978-06-28
Abstract: Pulverulent or pasty material, particularly industrial explosives, is compacted during delivery through a tube to produce a rod of the material which is then either passed through a bath of coating material which is then solidified in a solidification zone, or is successively delivered into empty cartridges. <IMAGE>
Patent GB-2001903-A (GB)
Title: Machine for cutting-off the corners of sheets arranged in stacks
IPC: B26D1/46
Filed: 1978-07-19
Abstract: The machine is intended for cutting-off the corners of stacked sheets 4 of for example corrugated asbestos cement and comprises two cutting devices located one on each side of a sheet support 6 and means for controlling the relative movement of the sheet support and of the cutting devices. Each cutting device comprises a band-saw 62 having a vertical cutting edge which is mounted on a support 60 movable along a vertical post 48 and which operates in vertical planes. The sheet support comprises means 14, 16, 18 for adjusting its inclination with respect to the ground. <IMAGE>
Patent GB-2028550-A (GB)
Title: Improvements in or relating to voltage regulation circuits
IPC: G05F1/12
Filed: 1978-08-23
Abstract: A voltage regulation circuit uses a zero crossing switch 1 to achieve regulation, the switch being controlled so as to gate out periodically one or more complete cycles of an a.c. waveform applied to a rectifier 4. Using a divider counter 11 and monostable circuit 13, and providing the output dc is greater than the reference, gate 9 is opened to inhibit an integral number of cycles of the a.c. supply using the zero voltage switch 1. Filter circuits remove the effects of the missing cycles. <IMAGE>
Patent GB-2005421-A (GB)
Title: Mounting devices for liquids in floats
IPC: G01N33/18
Filed: 1978-09-27
Abstract: A sensing device 2 for determining physical properties - such as pH, redox potential, oxygen content, flow rate (for example, by ultrasonic techniques) etc. - of liquids is mounted in a float 1. To ensure that the device is less affected by soiling or low flow speeds the underside of the float 10 has a convex face and a sensing face 9 of the sensor is substantially flush with that convex face. <IMAGE>
Patent GB-2032049-A (GB)
Title: Suspension unit with removable housing wall
IPC: B60G11/22
Filed: 1978-10-24
Abstract: A suspension unit for a light trailer comprises a square rod 5 to which is secured an arm 12 which carries a stub axle 3. The rod 5 is located within a square cavity 10 defined within a housing assembly 2 which is secured to the trailer body. Elastomeric rods 11 are located in the triangular spaces defined between the rod 5 and the walls of the cavity 10 to provide a resistance to rotation of the rod 5 relative to the housing assembly 2. One wall 6 of the housing assembly is removable to allow for inspection and replacement of the elastomeric rods 11. <IMAGE>
Patent GB-2007477-A (GB)
Title: Microwave ovens
IPC: F24C15/02
Filed: 1978-11-02
Abstract: A microwave oven has a rotating microwave radiator 14 as well as radiant resistance heating elements in an oven enclosure. Energy from a magnetron is coupled via a waveguide to a coaxial line with a fixed outer conductor 26 and a rotating inner conductor 22 which passes through a plenum 28 in the radiator to a wall 30 containing ports 32 spaced different distances from the axis of rotation and from which energy launches into the oven parallel to this axis. The plenum is shaped to form waveguides leading to the ports and by suitable dimensioning these and the first mentioned waveguide, and by matching the waveguide/ coaxial line transitions, it is possible to couple the magnetron closely to the enclosure without substantial reflection of energy back to the magnetron and with a steady standing wave ratio on the coaxial line. <IMAGE>
Patent GB-2035188-A (GB)
Title: Applying pressure to plastic material during cooling
IPC: B29C45/57
Filed: 1978-11-15
Abstract: A method and apparatus are disclosed for molding plastic articles, wherein the method includes the steps of filling a mold cavity 42 at a first station 60 with heated flowable plastic material and then displacing the mold to a second station 70 where the plastic material is cooled under pressure. The apparatus includes a rotatable support 10 for displacing the mold between the first and second stations, a plastic supply means 60 at the first station to fill the molds, and a displaceable rod 72 at the second station for insertion into the mold to apply pressure to the plastic material during solidification cooling. <IMAGE>